red-gum
Webster's Dictionary (GCIDE)
Red-gum \Red"-gum`\ (-g?m`), n. [OE. reed gounde; AS. re['a]d red + gund matter, pus.]
1.(Med.) An eruption of red pimples upon the face, neck, and arms, in early infancy; tooth rash; strophulus. --Good. [1913 Webster]
2.A name of rust on grain. See Rust. [1913 Webster] Red-hand